Whoops! Error: Could not read object configuration data!

[nic gna]

When I try to access the Host Details, etc, I have this error: 
   
  --------------------------------------------------------------------------------------------------
  
                                                       Whoops!
     Error: Could not read object configuration data!
     Here are some things you should check in order to resolve this error:
      1. Verify configuration options using the -v command-line option to check for errors.
    2. Check the Nagios log file for messages relating to startup or status data errors.
    3. Make sure you've compiled the main program and the CGIs to use the same object data storage options
       (i.e. default text file or template-based file).
     Make sure you read the documentation on installing, configuring and running Nagios thoroughly before
   continuing. If all else fails, try sending a message to one of the mailing lists. More information can be
   found at http://www.nagios.org.


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